I think this is naive. All of your historical examples involve the replacement of unskilled labor with more unskilled labor. Now we're talking about automation

I think this is naive. All of your historical examples involve the replacement of unskilled labor with more unskilled labor. Now we're talking about automation removing unskilled labor entirely from the job pool. Sure, there will be jobs that remain, but those will require a high degree of education/training, and the question is what do we do with the people that don't have the skills to get any of those jobs? I think the perspective of "this time it's different" could very well be true when it comes to labor and automation.